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Vishay General Semiconductor - Diodes Division P6SMB24CAHE3_A/I
- Part No.:
- P6SMB24CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CAHE3_A/I.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,643
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Product details
Overview
P6SMB24CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 24 V standoff voltage (VWM), 25.2 V minimum breakdown voltage (VBR), and 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current. It delivers 600 W peak pulse power (10/1000 μs), supports automotive-grade reliability (AEC-Q101 qualified), and protects signal lines in sensor interfaces and power rails.
For engineers reviewing the P6SMB24CAHE3_A/I datasheet, P6SMB24CAHE3_A/I pinout, P6SMB24CAHE3_A/I application, or P6SMB24CAHE3_A/I equivalent, key selection criteria include bidirectional clamping behavior, low incremental surge resistance, MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling transient suppression on AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for protecting sensitive analog inputs and high-speed digital I/O.
The device uses a planar silicon avalanche structure optimized for repetitive 10/1000 μs surge events at 0.01% duty cycle. Thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ = 150 °C) define its derating envelope under sustained surge conditions per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 20.5 V - Maximum reverse voltage before significant conduction; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 22.8–25.2 V at 1.0 mA - Avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 33.2 V at 18.1 A - Peak voltage seen by protected circuit during 600 W surge; determines IC survival margin. |
| IPPM (Peak Pulse Current) | 18.1 A - Maximum non-repetitive surge current supported with 10/1000 μs waveform. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity; validated per Fig. 1 with 0.2" × 0.2" copper pads. |
| TJ max. | 150 °C - Maximum junction temperature; sets thermal design limits for PCB layout and ambient conditions. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; used to calculate temperature rise under DC bias or repeated surges. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating nodes (e.g., RS-485, CAN, audio lines) without external polarity management. |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring extended temperature and reliability compliance. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without baking; compatible with standard lead-free SMT processes. |
| 600 W peak pulse power | Meets IEC 61000-4-5 Level 4 surge immunity requirements when mounted per recommended 0.2" × 0.2" pad layout. |
| Glass passivated junction | Ensures stable leakage current (<1.0 μA at VWM) and long-term reliability under thermal cycling and humidity exposure. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting transient excursions to ≤33.2 V during 18.1 A surges. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers and signal conditioners exposed to ISO 7637-2 pulses. |
Use Scenario: Safeguarding differential data lines in factory automation networks against induced lightning surges and ground bounce. IC Role / Device Role / Timing Role: Symmetric clamping element placed across A/B bus lines to suppress common-mode and differential transients. Use Value: Maintains signal integrity by limiting bus voltage excursion to ±33.2 V, preserving receiver common-mode range and preventing false triggering. |
| Consumer Audio Line Driver | Power Supply Input Rail |
Use Scenario: Shielding headphone amplifier outputs and line-in inputs from ESD discharge during user handling in portable audio devices. IC Role / Device Role / Timing Role: Fast-response bidirectional shunt protector placed between signal and ground near connector entry points. Use Value: Clamps sub-100 ns ESD events to <33.2 V, avoiding distortion or pop-noise caused by input stage saturation in op-amp circuits. |
Use Scenario: Secondary-level surge suppression on 24 V DC input rails feeding industrial PLCs or PoE-powered equipment. IC Role / Device Role / Timing Role: Standoff-rated (20.5 V) clamping device absorbing residual transients after primary MOV or GDT stages. Use Value: Limits rail overvoltage to 33.2 V during 600 W surges, protecting downstream DC-DC converters and LDOs rated for ≤36 V input. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Same SMB package, 24 V VWM, but lower PPPM (400 W) and higher VC (38.9 V at 10.3 A); not AEC-Q101 qualified. | Limited to commercial-grade consumer or office equipment where automotive qualification is unnecessary. | Select SMAJ24CA only if cost sensitivity outweighs surge margin and automotive compliance requirements. |
| 1.5KE24CA | Through-hole DO-15 package, same 24 V VWM, 600 W PPPM, but larger footprint and higher RθJA (70 °C/W); no AEC-Q101 option. | Suitable for legacy through-hole designs or high-power industrial supplies where board space permits larger packages. | Choose 1.5KE24CA only when retrofitting existing through-hole layouts or when thermal mass from axial leads improves surge endurance. |
Compared with SMAJ24CA and 1.5KE24CA, P6SMB24CAHE3_A/I uniquely combines AEC-Q101 qualification, SMB surface-mount compatibility, and full 600 W capability-making it the preferred choice for new automotive and space-constrained industrial designs requiring verified reliability.
Availability
P6SMB24CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial communication bus hardening, and consumer audio ESD mitigation requiring stable component supply and traceable sourcing.
Supply support for P6SMB24CAHE3_A/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets robust transient suppression in automotive, industrial, and telecom systems, designed to meet stringent surge immunity standards while supporting automated SMT manufacturing.
FAQ
What is the clamping voltage of P6SMB24CAHE3_A/I at its rated peak pulse current?
The P6SMB24CAHE3_A/I has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured with the device mounted on 0.2" × 0.2" copper pads per the datasheet's thermal test setup and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB24CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is P6SMB24CAHE3_A/I suitable for automotive applications?
Yes, P6SMB24CAHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for engine control units, body electronics, and ADAS sensor modules where reliability under thermal cycling, vibration, and electrical stress is mandatory. The P6SMB24CAHE3_A/I qualification covers the full specified temperature range (−65 °C to +150 °C).
How does the bidirectional nature of P6SMB24CAHE3_A/I affect its placement on the PCB?
The P6SMB24CAHE3_A/I has no polarity marking and functions identically in either orientation, simplifying PCB layout and eliminating risk of reverse installation. It can be placed directly across differential lines (e.g., RS-485 A/B), AC-coupled signals, or floating power domains without regard to terminal assignment. This symmetry also enables single-part stocking for both unidirectional and bidirectional protection needs within the same design family, reducing BOM complexity for the P6SMB24CAHE3_A/I.
What is the maximum steady-state power dissipation of P6SMB24CAHE3_A/I?
The P6SMB24CAHE3_A/I has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C on an infinite heatsink. In typical surface-mount applications with standard PCB copper, continuous power handling is significantly lower due to thermal resistance (RθJA = 100 °C/W); designers must apply derating curves from Figure 2 of the datasheet to determine safe DC bias limits. The P6SMB24CAHE3_A/I is intended primarily for transient suppression-not continuous power regulation.
Does P6SMB24CAHE3_A/I require special handling during reflow soldering?
No, P6SMB24CAHE3_A/I is rated MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C without preconditioning or baking. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and whisker resistance meets JESD 201 Class 2. These attributes make the P6SMB24CAHE3_A/I fully compatible with standard lead-free SMT assembly lines, eliminating process overhead for the P6SMB24CAHE3_A/I.
P6SMB24CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB24CAHE3_A/I FAQ
1.How can I place an order for P6SMB24CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CAHE3_A/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB24CAHE3_A/I reliable?
The price and inventory of P6SMB24CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB24CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CAHE3_A/I?
P6SMB24CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CAHE3_A/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB24CAHE3_A/I?
For technical support, including P6SMB24CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB24CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB24CAHE3_A/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB24CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB24CAHE3_A/I?
All P6SMB24CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CAHE3_A/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB24CAHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB24CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CAHE3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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